Spectrum of the Seas, Royal Caribbean's first Quantum Ultra-Class ship, launched in the spring of 2019. According to Royal Caribbean, the class is "the next evolution" of its Quantum Class, though it will be only the tiniest bit larger than the Quantum Class ships -- 168,800 gross tons versus 168,666 gross tons for both Anthem and Ovation of the Seas (Quantum of the Seas is smaller). All carry the same number of passengers.
Some of what you'll find onboard includes:
An all-suite complex, Royal Caribbean's first ever key-card access, private elevator, all-suite complex. It features a private swimming pool and a private restaurant for suite-class cruisers only.
The Ultimate Family Suite. This suite debuted on Symphony of the Seas in 2018, and is a two-story, 1,134-square-foot playground for families. Highlights include a private 3D cinema, air hockey table, a slide from the kids-only bedroom to the living room, floor-to-ceiling LEGO wall and a 212-square-foot wraparound balcony with a whirlpool, climbing wall and kid-friendly pool table.
Skypad, a top-deck virtual reality trampoline experience, which debuted on Independence of the Seas.
One large dining room, rather than the four, separate themed dining rooms which are on previous Quantum Class ships.
Spectrum of the Seas joined Quantum of the Seas in sailing the Asia-Pacific region. A second, as yet unnamed, Quantum Ultra-Class ship is also China-bound.
One of Royal Caribbean's smaller ships; highlights include rock climbing, bungee trampoline, three pools, eight bars and a Ben & Jerry's at sea; holds less than 3,000.
Older ship carrying fewer than 3,000; highlights include rock climbing, two pools, outdoor movie screen and several specialty dining venues including Ben & Jerry's at sea.
Offers three- and four-night cruises; features a rock climbing wall, Johnny Rockets at sea and smallish aqua park; can carry a bit over 2,500 cruisers.
An older ship carrying less than 3,000; features rock climbing, two pools, for-fee nursery, eight bars and lounges and more than half a dozen dining venues.
One of the smaller Royal Caribbean ships, Vision of the Seas carries 2,435 passengers and features six dining venues, rock climbing wall, solarium, outdoor movie screen and age-specific kids' clubs.
In 1999 Royal Caribbean's 3,114-passenger Voyager of the Seas became the largest cruise ship in the world and was heralded as the most revolutionary vessel ever built.
Carries 2,500 passengers, family-friendly and features eight dining venues, outdoor movie screen, casino, mini-golf, pool tables and Adventure Beach with water slides.
The second in the revolutionary Voyager-class series, Explorer of the Seas has a wealth of facilities, activities and entertainment.
Bustling atmosphere; features two-slide water park, simulated surfing, rock climbing, ice skating shows, 15 bars and the line's signature Royal Promenade; can carry upward of 4,000.
Brilliance of the Seas' mediumish size -- 2,112 passengers -- allows cruisers to feel they have the best of both worlds: a vessel with ample activities and attentive crew.
Carries some 4,400 passengers and features surf simulators, rock climbing and ice skating, 11 bars and lounges and the lively Royal Promenade.
Royal Caribbean's 3,114-passenger Mariner of the Seas launched in 2003 and was the first in its class to undergo upgrades designed to create fleet uniformity.
Carries more than 2,400 passengers and features six restaurants and bars, rock climbing wall, mini-golf, sports court, outdoor movie screen and casino.
One of Royal Caribbean's smaller ships; attractions include rock climbing and mini-golf, kids' water slide, half a dozen or so dining venues and family-specific cabins.
Can hold some 5,000 passengers; offers simulated surfing, rock climbing, a mini-golf course, dedicated karaoke bar and 10 dining venues.
The first megaship to hold more than 6,000 cruisers; features high-energy activities like zip lining, surfing and the high-diving AquaTheater.
Carries more than 4,000; features a three-slide water park, surf simulators, rock climbing wall and "Saturday Night Fever: The Musical."
A favourite with U.K. cruise passengers, Independence of the Seas offers more than 4,000 passengers an ice skating rink, whirlpools which extend over the ship's sides, six bars and six restaurants.
Mega-ship holding upwards of 6,400 passengers; features zip lining, surf simulators, rock climbing and an open-air Central Park with shops and restaurants.
Quantum of the Seas dares its passengers not to have fun. It's a bold ship that screams for your attention via its innovative features.
Carries nearly 4,500 passengers and features surf simulators, vertical skydiving, 16 dining venues and some of the largest suites at sea.
World's largest cruise ship featuring high-energy attractions including zip lining, water slides, surf simulators, rock climbing and 18 dining venues.
Royal Caribbean's newest ship will be one of the largest in the world when it launches in spring 2018; high-energy highlights include zip lining, water slides and surf simulators.
Part of Royal Caribbean's Quantum class, Ovation of the Seas boasts high-tech features such as the RipCord by iFly skydiving simulator, bumper cars and robot bartenders.
Royal Caribbean's Cuba ship with stops in Havana; features the Cuba-inspired Boleros lounge and a free mimosa or bloody mary at the daily "Sunday" brunch.
The first Quantum Ultra-Class ship will launch in the spring 2019. The class will be the next evolution of Royal Caribbean's Quantum Class, though the line has not yet said what its size will be.